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Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Barathronus: Greek, barathron = abyss + ending -ites, that lives there; the Barathron was a deep pit in Athens where criminals were thrown; 1849 +Greek, onos = hake.
More on authors: Goode & Bean.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser bathypelagisch; tiefenbereich 366 - 3270 m (Ref. 121928), usually 366 - 1640 m (Ref. 34024). Deep-water
Western Central Atlantic: Gulf of Mexico and the Caribbean Sea.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 14.0 cm SL Männchen/unbestimmt; (Ref. 121928)
Rückenflossenweichstrahlen (insgesamt) : 62 - 78; Afterflossenweichstrahlen: 46 - 59; Wirbelzahl: 68 - 75. Barathronus bicolor differs from the other five species of the genus with dark-pigmented peritoneum by the following combination of characters: D 62-78, A 46-59, pectoral-fin rays 22-27, anterior gill arch with 28-35 long rakers; vertebrae, precaudal 31-36, total 68-75; vomer with 1-5 fangs; paired bulbs at basis of penis not developed; no ventral flexure of anteriormost vertebrae; penis in ripe specimens long (up to 15% SL) and slender; fresh specimens light brownish with dark-blue peritoneum; otolith almost circular three times as long as thick and centrally placed sulcus 3-4 times in length of otolith (Ref. 121928).
Cross section: compressed.
Common species (Ref. 34024).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Nielsen, J.G., 2019. Revision of the circumglobal genus Barathronus (Ophidiiformes, Bythitidae) with a new species from the eastern North Atlantic Ocean. Zootaxa 4679(2):231-256. (Ref. 121928)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 4.8 - 10.4, mean 6.3 °C (based on 143 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00192 - 0.01191), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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